Comparison

CTBrowser vs Voxelis

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CTBrowser

This medical app allows users to browse CDISC Terminology by downloading files from NCI EVS. Users can search codelists and view detailed information about them and individual terms. Most features are available offline once terminology files are downloaded.

Highlights
  • Browse CDISC Terminology
  • Download terminology files from NCI EVS
  • Search codelists
  • View codelist and term details
  • Offline access to downloaded files
Read full description

CTBrowser — CDISC Terminology, Anywhere CTBrowser is a simple, fast, offline-first way to browse and search CDISC controlled terminology right on your iPhone. Once a terminology is downloaded, it stays on your device — no internet connection needed to look things up. BROWSE Select any downloaded terminology and browse its codelists. Tap a codelist to see its code, name, submission value, and whether it's extensible, followed by every term inside it — complete with submission value, code, definition, and synonym. SEARCH Full-text search across every terminology you've downloaded. Search by code, name, submission value, synonym, or definition, with matches highlighted right in the results. Found what you need? Jump straight to that term in its codelist with a single tap. DOWNLOAD & MANAGE Fetch the latest CDISC terminology list and download exactly the standards and versions you need over Wi-Fi. Remove anything you no longer need, or clear everything at once from the Files tab. SUPPORTED STANDARDS CDASH, SDTM, ADaM, SEND, Define-XML, Protocol, Glossary, DDF, TMF, and MRCT. PRIVACY CTBrowser does not collect, transmit, or track any of your data. All terminology data is stored only on your device. Whether you're a clinical data manager, biostatistician, programmer, or researcher working with CDISC standards, CTBrowser keeps the terminology you need just a tap away.

About

Voxelis

Features
Read full description

Educational and review use only. Voxelis is not FDA-cleared and must not be used for primary diagnosis. Open a CT or MR study instantly — local-first medical DICOM viewer for iPhone and iPad. WHAT'S NEW IN 1.5.3 An image-correctness release. • Sample studies render correctly. The bundled CT was a damaged file that displayed as a white blur. It has been repaired, and every study now opens at a window derived from its own pixels rather than one fixed setting. • Drag to window. With the WW/WL tool active, drag the image — sideways for contrast, up for brightness. • Anatomical orientation markers. A, P, R and L on the image edges, read from the study's own orientation data and rotating with the image. • 12- and 14-bit studies decode correctly. The darkest tissue in these files used to be misread, washing the image out. • Window values no longer carry a thousands separator. • Larger zoom controls, real thumbnails in the series rail, and a technical readout that no longer sits on the anatomy. • Now runs on iOS 17 and later.

Screenshots

CTBrowser4 screens
Voxelis4 screens

Verdict

The call

The clearest difference is update cadence: Voxelis at weekly against CTBrowser's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CTBrowser ships an update every 9 months, Voxelis weekly. The most recent releases landed on September 16, 2026 and September 20, 2026 respectively.

Scorecard1 real difference · 8 level
CTBrowser versus Voxelis: the parameters behind the verdict, then further details
ParameterCTBrowserVoxelis
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 9 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad — better
Requires iOS18.017.0 — better
Further details — not scored
Size1 MB8 MB
Age rating12+17+
DeveloperIppei AkiyaRuslan Dautov

In-app purchases

None

CTBrowser

No in-app purchases

None

Voxelis

No in-app purchases

Questions

Is CTBrowser free?
CTBrowser is free to download, with no in-app purchases.
Is Voxelis free?
Voxelis is free to download, with no in-app purchases.
Do CTBrowser or Voxelis have ads?
Neither CTBrowser nor Voxelis shows ads.
Which is updated more often, CTBrowser or Voxelis?
CTBrowser ships an update every 9 months, and Voxelis weekly. Most recently, CTBrowser was updated on September 16, 2026 and Voxelis on September 20, 2026.

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